Monitor convergence during simulation studies in SAS

August 26, 2015
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Monitor convergence during simulation studies in SAS

Ugh! Your favorite regression procedure just printed a warning to the SAS log. Something is wrong, and your attempt to fit a model to the data has not succeeded. A typical message is "WARNING: The validity of the model fit is questionable," perhaps followed by some additional diagnostic messages about

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Reading hierarchical data – Part 1

August 25, 2015
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A family and its members represent a simple hierarchy.  For example, the Jones family has four members: A text file might represent this hierarchy with family records followed by family members' records, like this:   The PROC FORMAT step below defines the codes in Column 1: proc format; value $type

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Making Notes With Livescribe 3

August 25, 2015
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Making Notes With Livescribe 3

A couple of weeks ago I wrote about active listening, and I mentioned that I find that note-taking helps me understand (and remember) what I am being told. The downside of this approach is the pile of age-old notebooks that I don't want to throw away "just in...
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SAS VA: Is Location just a Distracting Character in Your Dataviz?

August 24, 2015
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In my high school Performance Art class, our teacher, Mr. Kennedy, was constantly reminding us that when you have characters on stage the focus must remain on the central action. If you have non-speaking role then you cannot draw attention to yourself. For instance, you wouldn’t tap your foot, play with your hair or...
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Flexibility of SAS Enterprise Miner

August 24, 2015
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Do you use an array of tools to perform predictive analytics on your data? Is your current tool not flexible enough to accommodate some of your requirements? SAS Enterprise Miner may be your solution. With growing number of data mining applications, having a tool which can do variety of analysis

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Ten tips for simulating data with SAS

August 24, 2015
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One of my presentations at SAS Global Forum 2015 was titled "Ten Tips for Simulating Data with SAS". The paper was published in the conference proceedings several months ago, but I recently recorded a short video that gives an overview of the 10 tips: If your browser does not support

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Exercises for Learning SAS Programming

August 21, 2015
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Exercises for Learning SAS Programming

Our new book, Exercises and Projects for The Little SAS® Book Fifth Edition, includes a variety of exercises to help people learn SAS programming.  Rebecca Ottesen, Lora Delwiche and I designed this book so that it can be used either in a classroom setting or by individual readers working alone. One of the challenges...
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How is electricity generated in your state?

August 21, 2015
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I recently saw an article on washingtonpost.com showing what methods are used to generate electricity in each state. The data was interesting enough that I decided to try my hand at graphing and mapping it with our SAS software. Read along to see what I kept the same, and what

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She wants to be an airborne ranger

August 21, 2015
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She wants to be an airborne ranger

I wanna be an airborne ranger, Live the life of guts and danger.* If you are an 80's movie buff, you might remember the scene in The Breakfast Club where Bender, the juvenile delinquent played by Judd Nelson, distracts the principal by running through the school singing this song. Recently,

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